Before aardman were able to use special effects, I believe they would have used fabric wadding. You can get it from your local fabric store, this is also what I used.

For falling snow, and I really don't know because I haven't tried it, you could try dropping white confetti down in front of the camers, and take the picture at the same time.Another option would be to secure a sheet of glass in front of the camera, making sure it is exactly paralell with the camera, to avoid reflection, tack some cut out circles on to the glass, and frame by frame move them down. This is what Aardman used for a rain effect.

The forums are now closed. For all the latest Wallace & Gromit activity and discussion visit the news section of the website